Discharging valve for ball milling equipment

Abstract

The utility model relates to the technical field of discharge valves, in particular to a discharge valve for ball milling equipment. After a dry-type vibration ball mill finishes grinding, materials are mostly manually overturned and discharged, then the materials are screened through a screen and then directly discharged, and the materials cannot be automatically discharged and screened. In order to solve the problems, the utility model provides the discharge valve for the ball milling equipment, a feed port body of the discharge valve has a certain inclination angle relative to the ground, an upper port of the feed port is mounted on the outer wall of a ball mill, the upper port of the feed port is attached to the outer wall of the ball mill, after the ball mill finishes ball milling, a discharge valve on the outer wall of the ball mill is opened, and the discharge valve is closed. And under the vibration action of the ball mill, materials in the ball mill gradually enter the feeding port of the discharging valve, are filtered by the grating net assembly at the bottom of the discharging valve and then are discharged, so that automatic discharging and automatic screening of the materials in the ball mill are realized, the manpower is greatly saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of discharge valves, in particular to a discharge valve for ball milling equipment. Background Art

[0002] Dry vibration ball mill is one of the high-fine grinding machines widely used in industrial production. It grinds the material to micron level by exerting strong impact, crushing and grinding action on the material.

[0003] The dry vibration ball mill is equipped with grinding media, which move at high speed in the ball mill barrel, generating strong shear force, impact force and friction force, thereby grinding the material into fine powder. While the material is subjected to the impact and grinding of the medium, the material slowly moves to the discharge end of the mill due to the dynamic pressure of the powder formed by the height difference of the material surface on the two adjacent cross sections of the barrel until it is discharged from the mill. The dry vibration ball mill is mostly discharged by manual flipping, and then the material is directly discharged after being screened through the screen. However, the screen mesh is easily blocked during discharge, and the material cannot be discharged automatically, which is inefficient. Utility Model Content

[0004] The technical problem to be solved by the utility model is that after the dry vibration ball mill is ground, the material is usually unloaded by manual overturning, and then the material is directly discharged after being screened through a screen, and the material cannot be automatically discharged or screened. Based on the above problem, the utility model provides a discharge valve for ball mill equipment, including a discharge valve main cavity,

[0005] The main body cavity of the discharge valve includes an internal accommodating cavity, an upper end surface of the main body cavity and a lower end surface of the main body cavity. The upper end surface of the main body cavity, the lower end surface of the main body cavity and the accommodating cavity are connected to each other. A feed port is also provided on the side wall of the discharge valve body.

[0006] The lower end surface is sealed with a grid mesh component, the plane where the grid mesh component is located is parallel to the ground, and the middle of the grid mesh component has a gap for filtering materials.

[0007] The upper end surface is sealed with a discharge valve end cover, the plane where the discharge valve end cover is located is parallel to the ground, and the surface of the discharge valve end cover is provided with a hole, and the hole is communicated with the accommodating cavity.

[0008] A cylinder mounting plate is fixedly arranged on the surface of the discharge valve end cover, and the lower end surface of the cylinder is fixedly connected to the cylinder mounting plate. The cylinder arm of the cylinder is sequentially penetrated through the lower end surface of the cylinder, the cylinder mounting plate and the hole on the surface of the discharge valve end cover and extends into the accommodating cavity. The cylinder arm does not contact the inner wall of the accommodating cavity and can be extended and retracted along its axial direction.

[0009] A push plate is also provided in the accommodating cavity, and a push plate mounting plate is fixedly provided on the surface of the push plate. The push plate mounting plate and the push plate are parallel to the ground and do not contact the inner wall of the accommodating cavity. The lower end surface of the cylinder arm is fixedly connected to the upper surface of the push plate mounting plate. When the cylinder arm is axially extended or retracted, it drives the push plate to move vertically up and down in the accommodating cavity.

[0010] Preferably, the grille mesh assembly comprises a grille frame plate,

[0011] A plurality of round steel columns are fixedly arranged in the middle of the grille frame plate to form a grille net, and adjacent round steel columns are parallel to each other and equidistantly distributed, and the upper and lower end surfaces of the round steel columns are respectively fixedly connected to the inner side walls adjacent to the grille frame plate.

[0012] Preferably, cylindrical steel holes are fixedly provided in parallel and correspondingly to the inner side wall of the grille frame plate, and both ends of the cylindrical steel are respectively passed through the corresponding cylindrical steel holes and fixedly connected to the grille frame plate, and the cylindrical steel holes are interference fit with the cylindrical steel.

[0013] Preferably, a sealing groove is provided on the circumferential edge of the grille frame plate surface facing the interior of the accommodating cavity, and a sealing ring is provided on the grille frame plate surface. The sealing ring is completely embedded in the sealing groove to seal the sealing groove, and the upper surface of the sealing ring is flush with the plane of the grille frame plate facing the interior of the accommodating cavity.

[0014] Preferably, a second special-shaped flange is fixedly sleeved on the outer surface of the lower end face of the main body cavity, and the plane where the second special-shaped flange is located is parallel to the ground.

[0015] Preferably, a first special-shaped flange is fixedly sleeved on the outer surface of the upper end face of the main body cavity, the plane where the first special-shaped flange is located is parallel to the ground, and the discharge valve end cover is circumferentially fixedly connected to the first special-shaped flange.

[0016] Preferably, there are two cylinders, the cylinder arms of the two cylinders are parallel to each other and do not touch each other in a direction perpendicular to the ground, and the axial telescopic displacements of the two cylinders are the same.

[0017] Preferably, the end surfaces of the axial lower parts of the cylinder arms of the two cylinders are at equal vertical distances from the nearest edges of the discharge valve end cover surface at the geometric centers of the orthographic projections of the discharge valve end cover surface.

[0018] Preferably, the feed port includes a feed port body, an upper port and a lower port, the feed port body, the upper port and the lower port are connected to each other, the adjacent end faces of the feed port body, the upper port and the lower port are in contact with each other, the plane where the upper port is located is parallel to the plane where the lower port is located, and the straight line where the lower edge of the cross-section of the feed port body along its axial direction forms an acute angle of not less than 0° with the ground.

[0019] Preferably, the acute angle is 30-60°.

[0020] The beneficial effects of the utility model are:

[0021] (1) The utility model provides a discharge valve for a ball mill, wherein the feed inlet body has a certain inclination angle relative to the ground, and the upper end of the feed inlet is installed on the outer wall of the ball mill, and the upper end of the feed inlet is in contact with the outer wall of the ball mill. When the ball mill completes ball milling, the discharge valve on the outer wall of the ball mill is opened, so that the ball mill is connected to the feed inlet of the discharge valve. Under the vibration of the ball mill, the material in the ball mill gradually enters the feed inlet of the discharge valve, and then is discharged after being filtered by the grid mesh assembly at the bottom of the discharge valve, thereby realizing automatic discharge and automatic screening of the material in the ball mill, greatly saving manpower and improving work efficiency.

[0022] (2) The utility model provides a discharge valve for a ball mill, the structure of which for screening materials at the bottom is a grid mesh assembly, the grid mesh in the grid mesh assembly is formed by a plurality of parallel round steel columns spaced about 4 mm apart, the cylindrical steel having a smooth cylindrical side surface, and its surface roughness ≤ Ra = 0.8 μm, which can effectively prevent the grid mesh from being blocked by materials. Other types of screens, such as round hole screens, are particularly prone to blockage even if their round hole diameters are also 4 mm. The reason is that in the grid mesh of the utility model, the spacing between adjacent cylindrical steels is smaller than the grinding medium (grinding ball). The diameter can effectively ensure that the grinding medium is intercepted by the grid mesh, and can prevent the agglomerated materials from completely blocking the gaps between adjacent cylindrical steels. The surface of the cylindrical steel is also smooth enough. Even if there are agglomerated materials with a diameter greater than 4mm on the grid mesh, they will move quickly in different directions under the impact of the new materials passing through the grid mesh, and it is not easy to terminate the material filtration process. The round hole screen has round holes. When the diameter of the agglomerated materials is greater than 4mm, it is easy to block many round holes, which will quickly cause filtration resistance and affect the normal filtration of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 : It is a schematic diagram of the assembly structure of a discharge valve for ball milling equipment of the utility model.

[0025] Figure 2 : It is a partial cross-sectional schematic diagram of section AA in the assembly structure diagram of a discharge valve for a ball milling device of the present invention.

[0026] Figure 3 : It is a bottom view of a discharge valve for a ball milling device of the present utility model.

[0027] Figure 4: It is a structural schematic diagram of a grid mesh component in a discharge valve for a ball milling device of the utility model.

[0028] Figure 5 : It is a structural schematic diagram of a sealing ring of a grid mesh assembly in a discharge valve for a ball milling device of the utility model.

[0029] In the figure: 1. discharge valve main cavity, 1-1. accommodating cavity, 1-2. upper end surface of the main cavity, 1-3. lower end surface of the main cavity, 1-4. grille mesh assembly, 1-5. discharge valve end cover, 1-6. grille frame plate, 1-7. round steel column, 1-8. round steel column hole, 1-9. sealing groove, 1-10. sealing ring, 1-11. second special-shaped flange, 1-12. first special-shaped flange, 2. cylinder, 2-1. cylinder mounting plate, 2-2. cylinder arm, 2-3. push plate, 2-4. push plate mounting plate, 3. feed port, 3-1. feed port body, 3-2. upper port, 3-3. lower port. DETAILED DESCRIPTION

[0030] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0031] like Figure 1-5 As shown, a discharge valve for ball milling equipment of the utility model includes a discharge valve main cavity 1,

[0032] The discharge valve main body cavity 1 includes an internal accommodating cavity 1-1, an upper end surface 1-2 of the main body cavity and a lower end surface 1-3 of the main body cavity. The upper end surface 1-2 of the main body cavity, the lower end surface 1-3 of the main body cavity and the accommodating cavity 1-1 are communicated with each other. A feed port 3 is also provided on the side wall of the discharge valve main body.

[0033] The lower end surface is sealed with a grid mesh component 1-4, the plane where the grid mesh component 1-4 is located is parallel to the ground, and the middle of the grid mesh component 1-4 has a gap for filtering materials.

[0034] The upper end surface is sealed with a discharge valve end cover 1-5, the plane where the discharge valve end cover 1-5 is located is parallel to the ground, and the surface of the discharge valve end cover 1-5 is opened with a hole, and the hole is connected with the accommodating cavity 1-1.

[0035] A cylinder mounting plate 2-1 is fixedly arranged on the surface of the discharge valve end cover 1-5, and the lower end surface of the cylinder 2 is fixedly connected to the cylinder mounting plate 2-1. The cylinder arm 2-2 of the cylinder 2 is sequentially penetrated through the lower end surface of the cylinder 2, the cylinder mounting plate 2-1 and the holes on the surface of the discharge valve end cover 1-5 and extends to the inside of the accommodating cavity 1-1. The cylinder arm 2-2 does not contact the inner wall of the accommodating cavity 1-1 and can be retracted and contracted along its axial direction.

[0036] A push plate 2-3 is also provided in the accommodating cavity 1-1, and a push plate mounting plate 2-4 is fixedly provided on the surface of the push plate 2-3. The push plate mounting plate 2-4 and the push plate 2-3 are both parallel to the ground and do not contact the inner wall of the accommodating cavity 1-1. The lower end surface of the cylinder arm 2-2 is fixedly connected to the upper surface of the push plate mounting plate 2-4. When the cylinder arm 2-2 is axially extended and retracted, it drives the push plate 2-3 to move vertically up and down in the accommodating cavity 1-1.

[0037] In order to better filter the required materials and prevent the grinding media from passing through the grid mesh and mixing into the filtered materials, the grid mesh assembly 1-4 includes a grid frame plate 1-6,

[0038] A plurality of round steel columns 1-7 are fixedly arranged in the middle of the grille frame plate 1-6 to form a grille mesh. Adjacent round steel columns 1-7 are parallel to each other and equidistantly distributed. The upper and lower end surfaces of the round steel columns 1-7 are respectively fixedly connected to the inner side walls adjacent to the grille frame plate 1-6.

[0039] In order to facilitate the disassembly, inspection and replacement of the cylindrical steel in the grille mesh assembly 1-4, the inner wall of the grille frame plate 1-6 is fixedly provided with cylindrical steel holes in parallel and correspondingly, and the two ends of the cylindrical steel are respectively passed through the corresponding cylindrical steel holes and fixedly connected to the grille frame plate 1-6, and the cylindrical steel holes are interference fit with the cylindrical steel.

[0040] In order to form a better sealing and fixed connection effect between the edge of the grille frame plate 1-6 and the main cavity 1 of the discharge valve, a sealing groove 1-9 is opened on the circumferential edge of the surface of the grille frame plate 1-6 facing the inside of the accommodating cavity 1-1, and a sealing ring 1-10 is provided on the surface of the grille frame plate 1-6. The sealing ring 1-10 is completely embedded in the sealing groove 1-9 to seal the sealing groove 1-9, and the upper surface of the sealing ring 1-10 is flush with the plane of the grille frame plate 1-6 facing the inside of the accommodating cavity 1-1.

[0041] In order to facilitate the fixed connection between the feed port 3 and the side wall of the grinder, a second special-shaped flange 1-11 is fixedly sleeved on the outer surface of the lower end face 1-3 of the main cavity, and the plane where the second special-shaped flange 1-11 is located is parallel to the ground.

[0042] In order to better fix the cylinder 2 on the surface of the discharge valve end cover 1-5, a first special-shaped flange 1-12 is fixedly sleeved on the outer surface of the upper end face 1-2 of the main cavity, and the plane where the first special-shaped flange 1-12 is located is parallel to the ground. The discharge valve end cover 1-5 is circumferentially fixedly connected to the first special-shaped flange 1-12.

[0043] In order to speed up the filtering efficiency of the material, the cylinder 2 has two cylinder arms 2-2, the cylinder arms 2-2 of the two cylinders 2 are parallel to each other and do not touch each other in a direction perpendicular to the ground, and the axial telescopic displacements of the two cylinders 2 are the same.

[0044] In order to speed up the filtering efficiency of the material, the geometric centers of the positive projections of the end faces of the axial lower parts of the cylinder arms 2-2 of the two cylinders 2 are equidistant from the nearest edges of the surface of the discharge valve end cover 1-5 by the same vertical distance.

[0045] In order to speed up the filtering efficiency of the material, the feed port 3 includes a feed port body 3-1, an upper port 3-2 and a lower port 3-3. The feed port body 3-1, the upper port 3-2 and the lower port 3-3 are connected to each other, and the adjacent end faces of the feed port body 3-1, the upper port 3-2 and the lower port 3-3 are in contact with each other. The plane where the upper port 3-2 is located is parallel to the plane where the lower port 3-3 is located, and the straight line where the lower edge of the cross section of the feed port body 3-1 along its axial direction forms an acute angle of not less than 0° with the ground.

[0046] In order to increase the filtering efficiency of the material, the acute angle is 30-60°.

[0047] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A discharge valve for a ball mill, characterized in that: It includes a discharge valve main chamber (1), The discharge valve main body cavity (1) comprises an internal accommodating cavity (1-1), an upper end surface (1-2) of the main body cavity and a lower end surface (1-3) of the main body cavity. The upper end surface (1-2) of the main body cavity, the lower end surface (1-3) of the main body cavity and the accommodating cavity (1-1) are interconnected. A feed port (3) is also provided on the side wall of the discharge valve main body. The lower end surface is enclosed with a grille mesh component (1-4), the plane where the grille mesh component (1-4) is located is parallel to the ground, and the middle of the grille mesh component (1-4) has a gap for filtering materials. The upper end surface is sealed with a discharge valve end cover (1-5), the plane where the discharge valve end cover (1-5) is located is parallel to the ground, and a hole is opened on the surface of the discharge valve end cover (1-5), and the hole is communicated with the accommodating cavity (1-1). A cylinder mounting plate (2-1) is fixedly provided on the surface of the discharge valve end cover (1-5); the lower end surface of the cylinder (2) is fixedly connected to the cylinder mounting plate (2-1); a cylinder arm (2-2) of the cylinder (2) is sequentially penetrated through holes on the lower end surface of the cylinder (2), the cylinder mounting plate (2-1) and the surface of the discharge valve end cover (1-5) and extends into the interior of the accommodating cavity (1-1); the cylinder arm (2-2) does not contact the inner wall of the accommodating cavity (1-1) and can be extended and retracted along the axial direction thereof; A push plate (2-3) is also provided in the accommodating cavity (1-1), and a push plate mounting plate (2-4) is also fixedly provided on the surface of the push plate (2-3). The push plate mounting plate (2-4) and the push plate (2-3) are both parallel to the ground and do not contact the inner wall of the accommodating cavity (1-1). The lower end surface of the cylinder arm (2-2) is fixedly connected to the upper surface of the push plate mounting plate (2-4). When the cylinder arm (2-2) is axially extended or retracted, it drives the push plate (2-3) to move vertically up and down in the accommodating cavity (1-1).

2. A discharge valve for a ball mill according to claim 1, characterized in that: The grille mesh assembly (1-4) comprises a grille frame plate (1-6), A plurality of round steel columns (1-7) are fixedly arranged in the middle of the grille frame plate (1-6) to form a grille mesh; adjacent round steel columns (1-7) are parallel to each other and are equidistantly distributed; and upper and lower end surfaces of the round steel columns (1-7) are respectively fixedly connected to adjacent inner side walls of the grille frame plate (1-6).

3. A discharge valve for a ball mill according to claim 2, characterized in that: The inner side wall of the grille frame plate (1-6) is fixedly provided with cylindrical steel holes in parallel and correspondingly, and the two ends of the cylindrical steel are respectively passed through the corresponding cylindrical steel holes and fixedly connected to the grille frame plate (1-6), and the cylindrical steel holes are interference fit with the cylindrical steel.

4. A discharge valve for a ball mill according to claim 2, characterized in that: A sealing groove (1-9) is provided on the circumferential edge of the surface of the grille frame plate (1-6) facing the interior of the accommodating cavity (1-1), and a sealing ring (1-10) is provided on the surface of the grille frame plate (1-6). The sealing ring (1-10) is completely embedded in the sealing groove (1-9) to seal the sealing groove (1-9), and the upper surface of the sealing ring (1-10) is flush with the plane of the grille frame plate (1-6) facing the interior of the accommodating cavity (1-1).

5. A discharge valve for a ball mill according to claim 1, characterized in that: A second special-shaped flange (1-11) is fixedly sleeved on the outer surface of the lower end surface (1-3) of the main body cavity, and the plane where the second special-shaped flange (1-11) is located is parallel to the ground.

6. A discharge valve for a ball mill according to claim 1, characterized in that: A first special-shaped flange (1-12) is fixedly sleeved on the outer surface of the upper end surface (1-2) of the main body cavity, the plane where the first special-shaped flange (1-12) is located is parallel to the ground, and the discharge valve end cover (1-5) is circumferentially fixedly connected to the first special-shaped flange (1-12).

7. A discharge valve for a ball mill according to claim 1, characterized in that: The cylinder (2) has two cylinders, the cylinder arms (2-2) of the two cylinders (2) are parallel to each other and do not contact each other in a direction perpendicular to the ground, and the axial telescopic displacements of the two cylinders (2) are the same.

8. A discharge valve for a ball mill according to claim 7, characterized in that: The geometric centers of the orthographic projections of the axial lower end surfaces of the cylinder arms (2-2) of the two cylinders (2) on the surface of the discharge valve end cover (1-5) are equidistant vertically from the nearest edges of the surface of the discharge valve end cover (1-5).

9. A discharge valve for a ball mill according to claim 1, characterized in that: The feed port (3) comprises a feed port body (3-1), an upper port (3-2) and a lower port (3-3); the feed port body (3-1), the upper port (3-2) and the lower port (3-3) are connected to each other; adjacent end surfaces of the feed port body (3-1), the upper port (3-2) and the lower port (3-3) are in contact with each other; a plane where the upper port (3-2) is located is parallel to a plane where the lower port (3-3) is located; and a straight line where the lower edge of the cross section of the feed port body (3-1) along its axial direction is located forms an acute angle of not less than 0° with the ground.

10. A discharge valve for a ball mill according to claim 9, characterized in that: The acute angle is 30-60°.

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